CN223155897U - A 550kV double-column horizontal rotary disconnector - Google Patents
A 550kV double-column horizontal rotary disconnectorInfo
- Publication number
- CN223155897U CN223155897U CN202422363084.7U CN202422363084U CN223155897U CN 223155897 U CN223155897 U CN 223155897U CN 202422363084 U CN202422363084 U CN 202422363084U CN 223155897 U CN223155897 U CN 223155897U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- locking
- knife
- contact
- main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
一种550kV双柱水平旋转式隔离开关，涉及隔离开关技术领域，用于解决现有双柱水平旋转式隔离开关存在的导电合闸不可靠、闭锁系统卡涩问题。包括底座、绝缘组件和主导电，主导电包括触指侧导电和触头侧导电，触指侧导电的端部具有棒型自力式触指，触头侧导电的端部具有触头；还包括机械联锁组件，机械联锁组件包括闭锁盘、连杆和闭锁接头，每一支柱绝缘子的下端均固定有一个闭锁盘，每一支柱绝缘子的下方均具有一个闭锁接头，底座上具有安装支架，闭锁接头的一端与安装支架铰链连接，连杆位于两闭锁接头另一端之间且闭锁接头另一端与连杆的对应端铰链连接，闭锁接头上具有滚轮，闭锁盘的边缘具有限位槽。本实用新型导电合闸可靠，闭锁系统卡涩现象大大减少。
A 550kV double-column horizontal rotary disconnector relates to the technical field of disconnectors, and is used to solve the problems of unreliable conductive closing and jamming of the locking system in the existing double-column horizontal rotary disconnectors. It includes a base, an insulating assembly and a main conductor, the main conductor includes a contact side conductor and a contact side conductor, the end of the contact side conductor has a rod-shaped self-powered contact finger, and the end of the contact side conductor has a contact; it also includes a mechanical interlocking assembly, the mechanical interlocking assembly includes a locking disk, a connecting rod and a locking joint, a locking disk is fixed at the lower end of each post insulator, a locking joint is provided below each post insulator, a mounting bracket is provided on the base, one end of the locking joint is hinged to the mounting bracket, the connecting rod is located between the other ends of the two locking joints, and the other end of the locking joint is hinged to the corresponding end of the connecting rod, a roller is provided on the locking joint, and a limiting groove is provided on the edge of the locking disk. The utility model has reliable conductive closing, and the jamming of the locking system is greatly reduced.
Description
Technical Field
The utility model relates to the technical field of isolating switches, in particular to a 550kV double-column horizontal rotary isolating switch.
Background
At present, the voltage class of the double-column horizontal rotation type single-fracture isolating switch at home and abroad is 363kV or below, and a transformer substation has certain requirements on the double-column horizontal rotation single-fracture isolating switch with higher voltage class. 363kV and below double-column horizontal rotary isolating switch has the phenomena of unreliable conductive closing and blocking of a locking system, so that the overhaul period is long and the maintenance cost is high. Therefore, a 550kV double-column horizontal rotary isolating switch with reliable conductive switching-on and stable mechanical locking structure is urgently needed.
Disclosure of utility model
The utility model aims to provide a 550kV double-column horizontal rotary isolating switch, which is used for solving the problems of unreliable conductive closing and blocking of a locking system existing in the existing double-column horizontal rotary isolating switch.
The technical scheme includes that the 550kV double-column horizontal rotary isolating switch comprises a base, an insulating assembly and a main conductor, wherein the base is provided with a main knife electric mechanism, the insulating assembly comprises two post insulators, the lower ends of the post insulators are rotatably mounted on the base through bearing seats, the main knife electric mechanism drives the two post insulators to rotate through a main knife side transmission assembly, the main conductor comprises a contact finger side conductor and a contact side conductor, one end of the contact finger side conductor and one end of the contact side conductor are fixed at the upper ends of the corresponding post insulators, the other end of the contact finger side conductor is provided with a rod type self-operated contact finger, the other end of the contact side conductor is provided with a contact, the mechanical interlocking assembly comprises a locking disc, a connecting rod and a locking joint, the lower end of each post insulator is fixedly provided with a locking disc, the lower end of each post insulator is provided with a locking joint, the base is provided with a mounting bracket, one end of the locking joint is connected with a mounting bracket hinge, one end of the locking joint is provided with a locking groove, the other end of the locking joint is positioned on one side of the corresponding side of the locking disc, the locking groove is positioned on one side of the locking groove, and the other side of the locking groove is in contact groove is positioned on the side of the corresponding side of the locking groove.
Further, connecting rod joints are arranged at two ends of the connecting rod in a threaded mode, and the connecting rod is hinged to the locking joint on the corresponding side through the connecting rod joints.
Further, the novel touch finger further comprises a locking assembly, the locking assembly comprises a hook plate support and a conductive hook plate, the hook plate support is fixed at the other end of the conductive touch finger side, the conductive hook plate is fixed at the other end of the conductive touch finger side, and main conductive locking is achieved when the conductive hook plate hooks the hook plate support.
Further, the main knife side transmission assembly comprises an interelectrode connecting rod, one end of the interelectrode connecting rod is hinged with the lower end of one of the post insulators, the other end of the interelectrode connecting rod is hinged with the lower end of the other post insulator, and synchronous and reverse rotation of the two post insulators is realized through the interelectrode connecting rod.
Further, one end of the inter-pole connecting rod is provided with an elbow joint which is hinged with the lower end of one of the post insulators.
Further, the other end of the interelectrode connecting rod is provided with a U-shaped bolt holding clamp, and the U-shaped bolt holding clamp is fixedly connected with the other end of the interelectrode connecting rod and simultaneously hinged with the lower end of the other post insulator.
Further, the main cutter side transmission assembly further comprises a vertical connecting rod and a main cutter crank arm, the lower end of the vertical connecting rod is fixedly connected with the output end of the main cutter electric mechanism, and the upper end of the vertical connecting rod is connected with one of the post insulators through the main cutter crank arm.
Further, the ground switch comprises a left grounding knife, a right grounding knife, a ground knife electric mechanism and a ground knife transmission assembly, wherein the ground knife electric mechanism is fixed on the base, and the left grounding knife and the right grounding knife are driven to swing through the ground knife transmission assembly.
The self-force type contact finger has the beneficial effects that the structure of the main conductive upper rod type self-force type contact finger is large in contact length with a contact, and the self-deformation ensures the clamping force during contact, so that the reliability of conductive closing is ensured, and the debugging fault tolerance is improved. And when the mechanical interlocking assembly works, only the roller is in contact with the locking disc, so that the friction area is effectively reduced, and the jamming risk of locking of the existing 550KV isolating switch can be effectively reduced.
Drawings
FIG. 1 is a top view of an isolating switch of the present utility model;
FIG. 2 is a front view of the disconnector of the present utility model;
FIG. 3a is a front view of the latch assembly;
FIG. 3b is a top view of the latch assembly;
FIG. 4 is a schematic illustration of the contact of a stick-type self-supporting finger with a contact;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a top plan view of the active side of the inter-pole link;
FIG. 7 is a driven side plan view of the inter-pole link;
FIG. 8 is a top view of the mechanical interlock assembly;
In the figure, a main knife crank arm, a connecting rod between 2 poles, a left grounding knife crank arm, a left grounding knife, a right grounding knife crank arm, a 7 contact finger side conduction, a 71 hook plate bracket, a 8 contact side conduction, a 81 conduction hook plate, a9 wire holder upper side equalizing ring, a 10 contact side equalizing ring, a 11 contact finger side equalizing ring, a 12 wire holder lower side equalizing ring, a 13 grounding static contact, a 14 post insulator, a 15 base, a 16 left grounding lock, a 17 right grounding lock, a 18 main knife electric mechanism, a 19 grounding knife electric mechanism, a 20 vertical connecting rod, a 21 bent joint, a 22U-shaped bolt holding clamp, a 23 rod type self-operated contact finger, a 24 contact, a 25 mounting bracket, a 26 locking disc, a 27 locking joint, a 28 connecting rod, a 29 roller, a 30 connecting rod joint and a bearing seat 31.
Detailed Description
As shown in fig. 1 to 8, the present utility model includes a base 15, a main conductive, insulating assembly, a ground switch, a mechanical interlock assembly, a latch assembly, and a grading ring assembly, and the structure and operation of the present utility model are described in detail with reference to the accompanying drawings.
The 550kV double-column horizontal rotary isolating switch is suitable for 550kV power supply lines, high-voltage lines are switched on and off under the condition of no load, and high-voltage equipment such as overhauled high-voltage buses and circuit breakers are electrically isolated from electrified high-voltage lines.
As shown in fig. 1 to 8, the present utility model includes a base 15, a main conductive, insulating assembly, a ground switch, a mechanical interlock assembly, a latch assembly, and a grading ring assembly, and the base 15 is a basic component of the present utility model. Each phase of the isolating switch is provided with a base 15, the base 15 is assembled by hot dip galvanized steel parts, a left grounding knife 4 and a right grounding knife 5 are arranged on the base 15, and the left grounding knife 4 and the right grounding knife 5 are part of the grounding switch. The main knife electric mechanism 18 and the ground knife electric mechanism 19 are indirectly fixed on the base 15, the output ends of the main knife electric mechanism 18 and the ground knife electric mechanism 19 are respectively provided with a vertical connecting rod 20, the upper end of the vertical connecting rod 20 at the output end of the main knife electric mechanism 18 is fixedly connected with one end of the main knife crank arm 1, and the upper end of the vertical connecting rod 20 at the output end of the ground knife electric mechanism 19 is fixedly connected with the right ground knife crank arm 6. In this way, the main knife motor 18 can drive the main knife crank arm 1 to rotate when driving the corresponding vertical connecting rod 20 to rotate, and the ground knife motor 19 can drive the right ground knife crank arm 6 to rotate when driving the corresponding vertical connecting rod 20 to rotate. The right grounding knife crank arm 6 is connected with the right grounding knife 5, and the right grounding knife crank arm 6 drives the right grounding knife 5 to be switched on or off when rotating. The right grounding knife crank arm 6 and the right grounding knife 5 are positioned on the right side of the base 15, the left side of the base 15 is provided with the left grounding knife crank arm 3, the left grounding knife crank arm 3 is connected with the left grounding knife 4, and the left grounding knife crank arm 3 drives the left grounding knife 4 to switch on or off when rotating.
The left grounding lock 16 is arranged between the left grounding knife crank arm 3 and the main knife crank arm 1 and is positioned below the isolating switch body, and a swing arm type locking structure is adopted, so that the main knife can not be switched on in a main knife switching-on state, and the main knife can not be switched on in the main knife switching-on state. The right grounding lock 17 is arranged at the positions of the right grounding knife crank arm 6 and the main knife crank arm 1 and is positioned in front of the isolating switch body, and a swing arm type locking structure is adopted, so that the action of the right grounding lock 17 is consistent with that of the left grounding lock 16. The left and right ground latches 16 and 17 are prior art.
The post insulator 14 is an insulating component of the utility model, and the post insulator 14 plays a role in establishing the ground insulation of the conductive system and ensuring the mechanical stability of the isolating switch under dynamic and static loads. The insulating posts of the post insulator 14 are classified into III and IV antifouling grades, and each of the insulating posts is composed of three sections of high-strength porcelain bottles. The upper end of the post insulator 14 is provided with a wire holder lower equalizing ring 12, the wire holder lower equalizing ring 12 is provided with a grounding static contact 13, and the wire holder lower equalizing ring 12 is positioned below the main conductor. The upper side of the main conductor is provided with a grading ring 9 on the upper side of the wire holder. The equalizing ring 12 at the lower side of the wire holder and the equalizing ring 9 at the upper side of the wire holder are all in the prior art, and are not described in detail. The lower extreme of pillar insulator 14 passes through bearing frame 31 rotation to be installed on base 15, has two bearing frames 31 that set up about on the base 15, and left side pillar insulator 14 is connected with the other end of main knife turning arm 1, and like this, the rotation of driving left side pillar insulator 14 when main knife turning arm 1 rotates. The left pillar insulator 14 and the right pillar insulator 14 are connected through the interelectrode connecting rod 2, the driving side of the interelectrode connecting rod 2 is an elbow joint 21 as shown in fig. 6, the elbow joint 21 is hinged with the left bearing seat 31 as shown in fig. 1, the driven side of the interelectrode connecting rod 2 is a U-shaped bolt clamp 22 structure as shown in fig. 7, the U-shaped bolt clamp 22 is fixedly connected with the interelectrode connecting rod 2 as shown in fig. 1, and the structure of the interelectrode connecting rod 2 is hinged with the right bearing seat 31 as shown in fig. 1, so that the structure design of the interelectrode connecting rod 2 can be convenient for field debugging. The vertical connecting rod 20, the driving crank arm 1 and the interelectrode connecting rod 2 at the output end of the main knife electric mechanism 18 form a main knife side transmission assembly, and the main knife electric mechanism 18 drives the two post insulators 14 to rotate through the main knife side transmission assembly, so that the opening and closing of the isolating switch are realized. The vertical connecting rod 20, the left grounding knife crank arm 3 and the right grounding knife crank arm 6 at the output end of the grounding knife electric mechanism 19 form a grounding knife side transmission assembly, and the grounding knife electric mechanism 19 drives the opening and closing of the left grounding knife 4 and the right grounding knife 5 through the grounding knife side transmission assembly.
The upper end of the pillar insulator 14 is fixedly provided with a main conductor, the main conductor comprises a contact finger side conductor 7 and a contact side conductor 8, one end of the contact finger side conductor 7 is fixed at the upper end of the left pillar insulator 14, and one end of the contact side conductor 8 is fixed at the upper end of the right pillar insulator 14. The contact finger side conduction 7 and the contact side conduction 8 both adopt special-shaped aluminum profile structures, and according to the skin effect principle, the main conduction heat dissipation area is large, the through flow is ensured, and meanwhile, the material waste can be avoided.
As shown in fig. 2, the end part of the other end of the contact finger side conductive 7 is provided with a rod-shaped self-operated contact finger 23, the rod-shaped self-operated contact finger 23 is made of copper alloy with high elasticity and high conductivity, and as shown in fig. 4 and 5, the rod-shaped self-operated contact finger 23 is provided with a longer contact surface, so that the fault tolerance of the contact surface is effectively improved. The other end of the contact side conduction 8 is provided with a contact 24, and when the rod-shaped self-operated contact finger 23 is contacted with the contact 24, the isolating switch is in a closing state. The deformation of the bar-type self-operated contact finger 23 provides reliable clamping force for closing the isolating switch, and silver plating is carried out on the outer surfaces of the bar-type self-operated contact finger 23 and the contact 24. The bar-type self-operated contact finger 23 is formed by bending a copper bar, and the bar-type self-operated contact finger 23 at the other end of the contact finger side conduction 7 is symmetrically arranged, so that one end of the bar-type self-operated contact finger 23, which is contacted with the contact 24, is in a horn shape, has a guiding function, and is convenient for smooth engagement of the contact 24 and the bar-type self-operated contact finger 23. Meanwhile, after closing, a certain clamping force is provided for closing by self deformation of the rod-type self-operated contact finger 23.
The other end of the contact finger side conductive 7 is provided with a contact finger side equalizing ring 11, and the other end of the contact finger side conductive 8 is provided with a contact finger side equalizing ring 10. The contact side equalizing ring 10, the contact finger side equalizing ring 11 equalizing ring assembly, the wire holder lower side equalizing ring 12 and the wire holder upper side equalizing ring 9 form an equalizing ring assembly, and the design of the upper uniform ring of the isolating switch is the prior art and will not be repeated.
A latching assembly is provided between the end of the finger-side conductor 7 and the end of the contact-side conductor 8, as shown in fig. 3a and 3b, the latching assembly comprising a hook plate bracket 71 and a conductive hook plate 81, the hook plate bracket 71 being fixed to the end of the finger-side conductor 7 and the conductive hook plate 81 being fixed to the end of the contact-side conductor 8. After closing, the conductive hook plate 81 hooks the hook plate bracket 71, so that the rod type self-operated contact finger 23 and the contact 24 are prevented from being separated under the action of electric power when the circuit is short-circuited, and the closing reliability is further ensured.
Mounted on the base 15 is a mechanical interlock assembly comprising a latch plate 26, a latch joint 27, a link 28, a roller 29 and a link joint 30. The two locking discs 26 are provided, wherein one locking disc 26 is fixedly connected with the vertical connecting rod 20 at the output end of the main cutter electric mechanism 18, the other locking disc 26 is fixedly connected with the vertical connecting rod 20 at the output end of the ground cutter electric mechanism 19, and the locking disc 26 is further indirectly and fixedly connected with the post insulator 14. The two locking joints 27 are arranged below the post insulators 14, one locking joint 27 is arranged on the side where the main cutter electric mechanism 18 is arranged, the other locking joint 27 is arranged on the side where the ground cutter electric mechanism 19 is arranged, one end of each locking joint 27 is hinged with the mounting bracket 25, and the mounting bracket 25 is fixed on the base 15. A connecting rod 28 is arranged between the other ends of the two locking joints 27, connecting rod joints 30 are arranged at the two ends of the connecting rod 28, the connecting rod joints 30 are in threaded connection with the connecting rod 28, and then the distance between the connecting rod joints 30 and the connecting rod 28 is adjustable. The connecting rod joint 30 at the left end of the connecting rod 28 is hinged with the other end of the locking joint 27 at one side of the main cutter electric mechanism 18, and the connecting rod joint 30 at the right end of the connecting rod 28 is hinged with the other end of the locking joint 27 at one side of the ground cutter electric mechanism 19. The locking tab 27 has a roller 29 thereon, and the roller 29 is in line contact with the locking disk 26. The edge of the locking disk 26 has a limit groove. The locking joint 27, the connecting rod 28 and the connecting rod joint 30 constitute a swing arm structure, which converts the force in the horizontal direction into a rotational movement of the locking structure. As shown in fig. 8, when the disconnecting switch is in the closing position, the part of the locking disc 26 on the side of the main knife electric mechanism 18 except the limit groove is in contact with the roller 29 on the corresponding locking joint 27, and the roller 29 on the locking joint 27 on the side of the ground knife electric mechanism 19 is positioned in the limit groove of the corresponding locking disc 26, so that the grounding switch cannot be closed. Conversely, when the grounding switch is in the closing position, the part, except the limit groove, of the locking disc 26 on one side of the grounding knife electric mechanism 19 is in contact with the roller 29 on the corresponding locking joint 27, and the roller 29 on the locking joint 27 on one side of the main knife electric mechanism 18 is positioned in the limit groove of the corresponding locking disc 26, so that the isolating switch cannot be closed. When the mechanical interlocking assembly works, other structural parts except the roller 29 are not contacted with the locking disc 26, so that the friction area is effectively reduced, and the problem of jamming deformation existing in locking of the conventional 550kV isolating switch can be greatly reduced.
The working principle of the utility model is described below:
(1) When the isolating switch is switched on, the main knife electric mechanism 18 acts to drive the main knife side vertical connecting rod 20 to rotate 180 degrees clockwise, the main knife crank arm 1 drives the left side bearing seat 31 and the main knife side post insulator 14 to rotate 90 degrees clockwise to drive the contact finger side conductive rod 7 to rotate 90 degrees clockwise, the right side bearing seat 31 and the ground knife side post insulator 14 rotate 90 degrees anticlockwise under the drive of the interelectrode connecting rod 2 to drive the contact finger side conductive rod 8 to rotate 90 degrees anticlockwise, the contact finger side conductive rod 7 and the contact finger side conductive rod 8 synchronously act, the rod type self-operated contact finger 23 at the other end of the contact finger side conductive rod 7 and the contact 24 at the other end of the contact finger side conductive rod 8 are mutually close until the contact 24 is contacted with the rod type self-operated contact finger 23, and therefore the whole switching-on action of the conductive system is realized.
(2) When the disconnecting switch is disconnected, the main knife electric mechanism 18 acts to drive the main knife side vertical connecting rod 20 to rotate 180 degrees anticlockwise, the main knife crank arm 1 drives the left side bearing seat 31 and the main knife side post insulator 14 to rotate 90 degrees anticlockwise, the contact finger side conductive rod 7 is driven by the interelectrode connecting rod 2 to rotate 90 degrees clockwise, the right side bearing seat 31 and the ground knife side post insulator 14 drive the contact finger side conductive rod 8 to rotate 90 degrees clockwise, the contact finger side conductive rod 7 and the contact finger side conductive rod 8 synchronously act, the rod-shaped self-operated contact finger 23 at the other end of the contact finger side conductive rod 7 and the contact 24 at the other end of the contact finger side conductive rod 8 are separated from each other until the contact 24 is parallel to the rod-shaped self-operated contact finger 23, and thus the whole disconnecting action of the conductive system is realized.
The structure of the main conductive upper rod type self-operated contact finger has a large contact length with the contact, and self deformation ensures the clamping force during contact, thereby ensuring the reliability of conductive closing and improving the debugging fault tolerance. And when the mechanical interlocking assembly works, only the roller is in contact with the locking disc, so that the friction area is effectively reduced, and the jamming risk of locking of the existing 550KV isolating switch can be effectively reduced.
Claims (8)
1. A550 kV double-column horizontal rotary isolating switch comprises a base, an insulating assembly and a main conductor, wherein the base is provided with a main knife electric mechanism, the insulating assembly comprises two post insulators, the lower ends of the post insulators are rotatably installed on the base through bearing seats, the main knife electric mechanism drives the two post insulators to rotate through a main knife side transmission assembly, the main conductor comprises a contact finger side conductor and a contact side conductor, one end of the contact finger side conductor and one end of the contact side conductor are fixed at the upper end of the corresponding post insulator, the contact finger side conductor is provided with a rod type self-operated contact finger, the other end of the contact side conductor is provided with a contact, the mechanical interlocking assembly comprises a locking disc, a connecting rod and locking connectors, the lower ends of the post insulators are respectively provided with a locking disc, the base is provided with a mounting bracket, one end of the locking connectors is hinged with the mounting bracket, the other end of the locking connectors is positioned between the other ends of the two locking discs and is provided with a corresponding rolling wheel groove on one side of the corresponding rolling wheel, and the other side of the rolling wheel is provided with a corresponding limit groove on the side of the locking disc.
2. The 550kV double-column horizontal rotary isolating switch according to claim 1, wherein the two ends of the connecting rod are provided with connecting rod joints in a threaded manner, and the connecting rod is hinged with the locking joint on the corresponding side through the connecting rod joints.
3. The 550kV double-pole horizontal rotary disconnecting switch of claim 1, further comprising a locking assembly, wherein the locking assembly comprises a hook plate bracket and a conductive hook plate, the hook plate bracket is fixed at the other conductive end of the contact finger side, the conductive hook plate is fixed at the other conductive end of the contact finger side, and the main conductive locking is realized when the conductive hook plate hooks the hook plate bracket.
4. The 550kV double-column horizontal rotary isolating switch according to claim 1, wherein the main knife side transmission assembly comprises an interelectrode connecting rod, one end of the interelectrode connecting rod is hinged with the lower end of one of the post insulators, the other end of the interelectrode connecting rod is hinged with the lower end of the other post insulator, and synchronous and reverse rotation of the two post insulators is realized through the interelectrode connecting rod.
5. The 550kV double-pole horizontal rotary disconnecting switch of claim 4 wherein one end of said inter-pole connecting rod has an elbow joint, said elbow joint being hinged to the lower end of one of the post insulators.
6. The 550kV double-column horizontal rotary isolating switch according to claim 5, wherein the other end of the interelectrode connecting rod is provided with a U-shaped bolt holding clamp, and the U-shaped bolt holding clamp is fixedly connected with the other end of the interelectrode connecting rod and simultaneously hinged with the lower end of the other post insulator.
7. The 550kV double-column horizontal rotary isolating switch of claim 4, wherein the main knife side transmission assembly further comprises a vertical connecting rod and a main knife crank arm, the lower end of the vertical connecting rod is fixedly connected with the output end of the main knife electric mechanism, and the upper end of the vertical connecting rod is connected with one of the column insulators through the main knife crank arm.
8. The 550kV double-pole horizontal rotary disconnecting switch of claim 1, further comprising a grounding switch, wherein the grounding switch comprises a left grounding knife, a right grounding knife, a grounding knife electric mechanism and a grounding knife transmission assembly, wherein the grounding knife electric mechanism is fixed on the base, and the grounding knife transmission assembly drives the left grounding knife and the right grounding knife to swing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422363084.7U CN223155897U (en) | 2024-09-27 | 2024-09-27 | A 550kV double-column horizontal rotary disconnector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422363084.7U CN223155897U (en) | 2024-09-27 | 2024-09-27 | A 550kV double-column horizontal rotary disconnector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223155897U true CN223155897U (en) | 2025-07-25 |
Family
ID=96464869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422363084.7U Active CN223155897U (en) | 2024-09-27 | 2024-09-27 | A 550kV double-column horizontal rotary disconnector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223155897U (en) |
-
2024
- 2024-09-27 CN CN202422363084.7U patent/CN223155897U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210325620U (en) | Outdoor high-voltage isolating switch | |
| CN201576604U (en) | Single-column telescopic outdoor high-voltage alternating-current disconnector | |
| CN107527765B (en) | High-voltage isolating switch with ice-melting short circuit and conventional function switching and switching method thereof | |
| CN223155897U (en) | A 550kV double-column horizontal rotary disconnector | |
| CN201112254Y (en) | Double-column II type outdoor three-phase AC high-voltage isolating switch for external pressure type sensing finger structure | |
| CN113223891B (en) | A high-voltage disconnect switch | |
| CN201112247Y (en) | Double-column V-shaped outdoor three-phase AC high-voltage isolating switch for external pressure type sensing finger structure | |
| CN215869105U (en) | High-voltage isolating switch | |
| CN119170432A (en) | An open type combined electrical appliance | |
| CN218866972U (en) | Novel GW9 type isolating switch | |
| CN218004711U (en) | DC ice melting combined type isolating switch | |
| CN112151297A (en) | A splicing plug-in busbar earthing switch based on busbar post insulators | |
| CN219286279U (en) | High-voltage isolating switch | |
| CN206819924U (en) | Single column support type disconnecting link | |
| CN201112253Y (en) | Double-column V-shaped outdoor three-phase AC high-voltage isolating switch of self-operated sensing finger structure | |
| CN107046250B (en) | Vertical lifting type high-safety dual-power-supply power supply device and control method | |
| CN2629197Y (en) | 12KV outdoor AC isolating swtich and grounding swtich | |
| CN203445048U (en) | Three-station double grounding load switch | |
| CN223390422U (en) | Self-locking GW1-12 type isolating switch | |
| CN221079883U (en) | An insulated high-voltage disconnect switch | |
| CN216698201U (en) | Indoor vertical open-type high-current isolating switch device | |
| CN222749388U (en) | A long-life AC isolating switch | |
| CN201576603U (en) | Dual-pole horizontal rotary type outdoor three-phase high-voltage alternating current isolating switch | |
| CN117423568A (en) | High-current high-reliability ice-melting short-circuit isolating switch and use method thereof | |
| CN222088464U (en) | A three-phase disconnecting switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |